ADTRAN ISU 2X64 user manual Dial Options, V.25 bis Menu Tree, =V.25

Chapter 6. Configuration

V.25

Configuring the ISU 2x64 for V.25 bis (see Figure 6-5) enables inband dialing over a DTE interface using asynchronous or syn- chronous V.25 bis commands. V.25 bis can be used to establish and end a call. Disconnecting calls can also be done from the front panel (as described previously), from a VT 100 terminal, or from the far-end unit.

V.25 bis dialing is used primarily by DTE with synchronous inter- faces (HDLC/SDLC or BSC/BISYNC) not supporting the AT command set, which is commonly used by asynchronous devices. The ISU 2x64 supports V.25 bis inband dialing in accor- dance with Fascicle V.III-V.25 bis (Malaga-Torremolinos 1984, Melbourne 1988).

		1=Dial Line
	1=Netw. options	2=Leased Line
3=CONFIG	2=DTE options
	3=Protocol
	4=Quick setup
	5=Security
	6=Remote Config

1=Switch protocl
2=Call type	1=Front Panel
3=Terminal ID
	2=RS-366
4=Busy Out
		1=V.25 HDLC
	3=AT commands
5=Dial options
		2=V.25 ASYNC
	4=V.25
6=Auto answer		3=V.25 BISYNC
7=Answer tone	5=Disabled
		4=V.25 HDLC FLAG
8=Connect Timout
9=Call Screening
10=SBus Terminati
		Figure 6-5

Dial Options, V.25 bis Menu Tree

Recommendation V.25 uses the following DCE/DTE control sig- nals:

Transmitted Data . . . . . . . . . . . . . . . . . . . . . . . . . . . .Circuit 103 Received Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Circuit 104 Ready for Sending. . . . . . . . . . . . . . . . . . . . . . . . . . .Circuit 106 Data Set Ready. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Circuit 107 Data Terminal Ready . . . . . . . . . . . . . . . . . . . . . . . .Circuit 108/2 Calling Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . .Circuit 125

61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual 39